Chapter 4: Use Of The B Series Ldpu - OMAC B Series Operation And Maintenance Manual

Table of Contents

Rev.4 del 01/2011 O.M.A.C. s.r.l.

The LDPU is intended to be used by operators in charge of running it; therefore:

•

the operators in charge of using the LDPU must have good familiarity with this type of equipment and possess recognised technical skills

acquired in at least three years of similar activities;

•

the operator in charge of running the unit is directly and formally named by the Customer company management;

•

the instruction described in this chapter and relative to the LDPU must be read, understood and carried out carefully by these operators in charge.

ATTENTION

Knowledge of the following instructions and the experience of the operator in charge of running the plant of the customer are essential in order to limit

and reduce the risks associated with using the same production line.

4.1 Intended use

The LDPU, marketed by O.M.A.C. s.r.l., has been designed and made to be assembled in industrial plants owned by third parties, to transfer volumes of

ﬂ uids, compatible with the materials used during the construction of this machine: section 1.4.1 lists the recommended operational features of the LDPU,

depending on the processed ﬂ uid.

The LDPU requires compliance with all technical indications in this use and maintenance manual, which in this documentation will be indicated with the

abbreviation UMM, for its proper installation.

In general, the processed ﬂ uids must meet the following speciﬁ cations:

3) HARD PARTICLE SIZE: Maximum 80% of clearance between rotors (see sect. 1.3.4)

The LDPU has been designed and made for two types of use:

•

alimentary use;

•

chemical use.

WARNING

The LDPU, for alimentary use, has been made to ensure a hygienic standard equal to LEVEL 1, on the basis of UNI EN 13951.

The LDPU for alimentary use and for chemical use has been designed to transfer volumes of ﬂ uids without altering the organoleptic properties nor the

physical properties.

WARNING

During its normal use, the LDPU for alimentary use and for chemical use does not alter the organoleptic characteristics nor the physical characteristics

of the processed ﬂ uid.

Every LDPU comes with a technical sheet indicating the operational features in relation to the processed ﬂ uid that must be handled (name of the ﬂ uid,

viscosity range, capacity range, speed range, temperature range), as declared at the time of purchase by the Customer. Section 1.3 shows a facsimile of

the LDPU technical sheet. Every modiﬁ cation to what is indicated in the speciﬁ c technical sheet or variation of the machine operating parameters must

be authorised in writing by O.M.A.C. s.r.l.; the absence of such authorisation is deemed "improper use" and will void any warranty or liability under way

between Manufacturer and Customer.

DANGER

Any use of the LDPU in conditions other than those indicated in "Fluid properties and range of use" and in conditions other than those indicated in the

machine technical sheet is forbidden, without explicit written authorisation, issued by O.M.A.C. s.r.l.

The LDPU for alimentary use and for chemical use has NOT been designed nor built to handle pharmaceutical, explosive, etc. ﬂ uids, and in general

ﬂ uids that do not comply with the indications of the speciﬁ c technical sheet. In addition, the LDPU for alimentary use and chemical use has NOT been

designed nor built to handle what is indicated in Regulation (EC) No. 1005/2009 of the European Parliament and the Council of 16 September, 2009, on

substances that deplete the ozone layer.

ATTENTION

It is forbidden to use the LDPU for alimentary use and for chemical use to transfer the substances listed in Annex I of Regulation No. 1005/2009.

The pumping part of the LDPU is made up of the pump body, in which two rotors are housed (sect. 1.3.5 lists the types of rotors used), which rotate

synchronised in the opposite direction to each other.

The pump body receives the process ﬂ uid from the suction inlet, originating from the plant of the Customer. During the operation of the LDPU, the cavities

between the lobes of the rotors are ﬁ lled with ﬂ uid and the counter-rotation of the rotors transfers the ﬂ uid to the delivery outlet of the pump body, chan-

nelling it in the plant where the LDPU is installed.

Fluid properties and range of use:

1)TEMPERATURE: from -35°C to +180°C

2) VISCOSITY: Maximum 200'000cPs with forced feeding

Via Giovanni Falcone, 8

42048 Rubiera (RE) - Italy

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